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#26
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2-part Polyurethane or epoxy paint is worth a try. It gives a much better heat exhange than a double loop with plastic insulation between the liquids. So I would go for than. Make sure you do it right. Correct mixing rates, sand and clean metal first, high quality paint with no metal pigments.
But my real advice is swallow your pride and buy a 1/2 HP professional chiller. In the end, for most people, it is just not worth it making your own chiller.
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Jon Olav |
#27
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Yeah the epoxy is also a short lived option. The extreme temperature changes and expansion contrcation will cause premature failure of just about any coating that you paint onto the coils.
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#28
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I got (2) 18" pieces of 1/2" OD Titanium for under $20 for my chiller barrel off of eBay.
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"You can't depend on your eyes when your imagination is out of focus." - Mark Twain |
#29
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Quote:
I think it would be more long the lines of: "Swallow your wallet and your power bill and buy a 1/2 HP professional chiller"
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"You can't depend on your eyes when your imagination is out of focus." - Mark Twain |
#30
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Ya know, I think Meuser Reef has a very good point. Plus, I have a serious form of social disability.
I have almost no money. But I am smart, and I am good with my hands. When I undertake a hobby, I do not just buy the tank, and pay someone to maintain it for me and call myself a reefer. I have to work at a LFS for a while so I get lots of exposure to what can happen in a saltwater reef. I use my carpentry skills to make my own stands and hoods. I learn about aragocrete and create custom reefscapes for all my tanks. I retrofit and customize all my lighting rigs. Skimmers are drilled. Sumps are modified with removeable baffles for stopping microbubbles. I just finished getting certified for Scuba and intend to not only dive for my own organisms, but am studying everything I can find about the underwater realm I am about to experience. I will then bring the creatures I found in the ocean home and put them into my very customized aquaria. Gotta keep the coldwater critters cold, so I guess a little DIY chiller is coming up. You know the funny part? I would be just as crazed about how I conduct my reefkeeping as I am right now even if I had unlimited money available. It might not look like a store bought system, but I believe the real joy in reefkeeping is making a reeftank your own and bringing it to life.
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I ain't there yet, but I'm getting better everyday. |
#31
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Totally agree with that, i build everything i can. its more of a hobby that way too, instead of a show.
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Yes, Krikor is my real name... DVRC Respect _____________________________ |
#32
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Quote:
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Jon Olav |
#33
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I would suspect that it is a combination of fatigue of the bond between the materials and the cold temperatures changing the properties of the coating.
A coating thick enough to be very durable is also going to be an insulator. |
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